HY5DV281622DT Datasheet, PDF (6/31 Pages) Hynix Semiconductor – 128M(8Mx16) GDDR SDRAM

FUNCTIONAL BLOCK DIAGRAM
4Banks x 2Mbit x 16 I/O Double Data Rate Synchronous DRAM
HY5DV281622DT
CLK
/CLK
CKE
/CS
/RAS
/CAS
/WE
LDM
UDM
Command
Decoder
Bank
Control
Mode
Register
Row
Decoder
Write Data Register
16
2-bit Prefetch Unit
32
2Mx16/Bank0
2Mx16/Bank1
2Mx16/Bank2
2Mx16/Bank3
32 16
DS
DQ[0:15]
A0 ~ A11
BA0, BA1
Address
Buffer
Column Decoder
Column Address
Counter
CLK_DLL
DS
CLK
DLL
Block
LDQS, UDQS
Data Strobe
Transmitter
Data Strobe
Receiver
Mode
Register
Rev. 0.5 / Aug. 2003
6